{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0xb4cee0b289e878277976f74771c5deae73f62c0f80e6e006e6f96e1b83644d02",
    "signature": "0x745b7e0488076113e9708afa7803ccd0fe9faaa0023a69514ed84a169f5878381cec8007155d84b1fbf176a048243e33a6f6b58f823dc13ec84d9eb5d5f283ed1b",
    "signer": "0x1c4Ee34565eE3A8304706138026D7518821F356F",
    "userId": "584804802"
  }
}